Jobs and Careers
EY

UKI Technology Consulting- Active Directory Administrator, Assistant Manager

EY
Irelandfull_timeVerifiedPosted 1 Sept 2025

About the role

At EY, we’re all in to shape your future with confidence.  

 

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.​  

 

Join EY and help to build a better working world.  

 

General Information    

  •   Location: Dublin
  •   Available for Work Visa Sponsorship: No
  •   Business area: Technology Consulting (Cloud)
  •   Contract type: Permanent

 

The Team and the opportunity

 

Are you ready to take your career to the next level? Join our dynamic Tech Consulting team at EY Ireland as an Active Directory Administrator, Assistant Manager. In this role, you'll work on impactful, high-profile projects that help transform how our clients operate. You'll play a key part in designing and delivering secure, scalable directory and integration solutions across complex enterprise environments. If you're someone who enjoys solving real-world problems with smart technology, thrives on variety, and wants to see your work make a measurable difference, we’d love to hear from you.

 

Your Key Responsibilities

 

  • Administer and support Active Directory infrastructure, including:
    • Active Directory Certificate Services (ADCS)
    • Certificate-based authentication and enrolment
    • Encrypting File System (EFS)
    • Kerberos authentication
    • SSL/TLS configuration
  • Manage and maintain core services:
    • Microsoft Active Directory
    • DHCP
    • Windows Server Update Services (WSUS)
    • Windows File Server
  • Design, implement, and troubleshoot Group Policies (GPO)
  • Maintain a large DNS environment with multiple zones
  • Build and deploy laptops and desktops using Windows Deployment Services (WDS)
  • Develop Bash and PowerShell scripts for automation, software deployment, and reporting
  • Implement and manage Hybrid Active Directory deployments, Single Sign-On (SSO), Microsoft Entra ID, Microsoft Teams and Microsoft Intune
  • Monitor system performance and event logs for system and security issues
  • Perform in-place upgrades of Windows Server environments
  • Collaborate with cross-functional teams to improve server infrastructure
  • Provide remote and on-site support to IT users, including documentation and procedural guidance

 

Skills and attributes for success

 

To qualify for the role, you must have:

  • Third level qualification in Computer Science, Mathematics or a related discipline, or relevant experience related to the position
  • Minimum 5 years’ experience as a Systems Administrator
  • Microsoft professional certifications such as MCSA, MCSE, or MCITP Server Administrator
  • Strong expertise in:
    • Active Directory, DHCP, GPOs, WSUS, Windows File Server
    • Windows Deployment Services (WDS)
    • Bash and PowerShell scripting
    • Hybrid AD, SSO, Teams administration, Microsoft Entra ID, and Intune
  • Proven ability to troubleshoot and optimize server infrastructure
  • Excellent communication and collaboration skills

 

What We Look For:

 

We are looking for candidates who are:

  • Innovative and agile, with a purpose-driven mindset
  • Inclusive and able to work effectively in diverse teams
  • Passionate about technology and eager to learn and grow
  • Client-focused, with a strong commitment to delivering exceptional service

 

What working at EY offers

 

We offer a competitive remuneration package. Our comprehensive Total Rewards package includes support for flexible working and career development, and with FlexEY you can select benefits that suit your needs, covering holidays, health and well-being, insurance, savings and a wide range of discounts, offers and promotions. Plus, we offer: 

 

  • Support and coaching from some of the most engaging colleagues around 
  • Opportunities to develop new skills and progress your career 
  • The freedom and flexibility to handle your role in a way that’s right for you 

 

All our employees are given a benefits package which they can tailor to suit their individual preferences. Our range of benefits include: 

 

  • Pension
  • Discounted Health Insurance

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EY

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